<template>
  <div class="xtx-cart-page">
    <div class="container">
      <el-breadcrumb :separator-icon="ArrowRight">
        <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>购物车</el-breadcrumb-item>
      </el-breadcrumb>
      <div class="cart">
        <table>
          <thead>
            <tr>
              <th width="120">
                <el-checkbox v-model="isCheckAll"  @change="checkAll">全选</el-checkbox>
              </th>
              <th width="400">商品信息</th>
              <th width="220">单价</th>
              <th width="180">数量</th>
              <th width="180">小计</th>
              <th width="140">操作</th>
            </tr>
          </thead>
          <!-- 有效商品 -->
          <tbody>
            <tr v-for="item in $store.getters['cart/validList']" :key="item.skuId">
              <td>
                <el-checkbox v-model="item.selected" @change="itemChecked(item)"></el-checkbox>
              </td>
              <td>
                <div class="goods">
                  <RouterLink  :to="`/product/${item.id}`"><img :src="item.picture" alt=""></RouterLink>
                  <div>
                    <p class="name ellipsis">{{item.attrsText}}</p>
                    <!-- 选择规格组件 -->
                    <CartSku @change="$event=>updateCartSku(item.skuId,$event)" :attrs-text="item.attrsText" :skuId="item.skuId" ></CartSku>
                  </div>
                </div>
              </td>
              <td class="tc">
                <p>&yen;{{item.nowPrice}}</p>
                 <p v-if="item.price-item.nowPrice>0">
                  比加入时降价
+                  <span class="red">&yen;{{item.price-item.nowPrice}}</span>
                </p>
              </td>
              <td class="tc">
                <XtxNumbox @change="count => updateCount(item.skuId,count)" v-model="item.count"/>
              </td>
              <td class="tc"><p class="f16 red">&yen;{{item.count * item.nowPrice}}</p></td>
              <td class="tc">
                <p><a href="javascript:;">移入收藏夹</a></p>
                <p><a class="green" @click.stop="deleteCart(item.skuId)">删除</a></p>
                <p><a href="javascript:;">找相似</a></p>
              </td>
            </tr>
            <tr v-if="$store.getters['cart/validList'].length===0">
              <td colspan="6">
                <CartNone />
              </td>
            </tr>
          </tbody>
          <!-- 无效商品 -->
          <tbody v-if="$store.getters['cart/invalidList'].length">
            <tr><td colspan="6"><h3 class="tit">失效商品</h3></td></tr>
            <tr v-for="item in $store.getters['cart/invalidList']" :key="item.skuId">
              <td>
                <el-checkbox v-model="item.selected" @change="itemChecked"></el-checkbox>
              </td>
              <td>
                <div class="goods">
                  <RouterLink  :to="`/product/${item.id}`"><img :src="item.picture" alt=""></RouterLink>
                  <div>
                    <p class="name ellipsis">{{item.attrsText}}</p>
                    <!-- 选择规格组件 -->
                  </div>
                </div>
              </td>
              <td class="tc">
                <p>&yen;{{item.nowPrice}}</p>
                 <p v-if="item.price-item.nowPrice>0">
                  比加入时降价
+                  <span class="red">&yen;{{item.price-item.nowPrice}}</span>
                </p>
              </td>
              <td class="tc">
                <XtxNumbox :modelValue="item.count" />
              </td>
              <td class="tc"><p class="f16 red">&yen;200.00</p></td>
              <td class="tc">
                <p><a href="javascript:;">移入收藏夹</a></p>
                <p><a class="green" @click.stop="deleteCart(item.skuId)">删除</a></p>
                <p><a href="javascript:;">找相似</a></p>
              </td>
            </tr>
          </tbody>
        </table>
      </div>
      <!-- 操作栏 -->
      <div class="action">
        <div class="batch">
          <el-checkbox v-model="isCheckAll"  @change="checkAll">全选</el-checkbox>
          <a href="javascript:;" @click="batchDeleteCart" >删除商品</a>
          <a href="javascript:;">移入收藏夹</a>
          <a @click="batchDeleteCart(true)" href="javascript:;">清空失效商品</a>
        </div>
        <div class="total">
          共 {{$store.getters['cart/validTotal']}} 件商品，已选择 {{$store.getters['cart/selectedTotal']}} 件，商品合计：
          <span class="red">¥  {{$store.getters['cart/selectedAmount']}}  </span>
          <el-button type="primary" @click="submit" >下单结算</el-button>
        </div>
      </div>
      <!-- 猜你喜欢 -->
      <GoodRelevant />
    </div>
  </div>
</template>
<script>
import GoodRelevant from '@/views/goods/components/goods-relevant'
import { ArrowRight } from '@element-plus/icons-vue'
import { useStore } from 'vuex'
import { ref, watch, computed } from 'vue'
import CartNone from './components/cart-none.vue'
import { ElMessage, ElMessageBox } from 'element-plus'
import CartSku from './components/cart-sku.vue';
import { useRouter } from 'vue-router'
export default {
  name: 'XtxCartPage',
  components: { GoodRelevant, CartNone, CartSku },
  setup(){
    const store = useStore()
    const router = useRouter()
    const isCheckAll = ref(store.getters['cart/isCheckAll'])
    // 更新选择状态
    const itemChecked = (item)=>{
      store.dispatch('cart/updateCart', item)
      // 设置全选状态
      isCheckAll.value  = store.getters['cart/isCheckAll']
    }
    // 更新选择数量
    const updateCount = (skuId,count ) => {
      store.dispatch('cart/updateCart', {skuId, count})

    }
    const checkAll =(selected) => {
      store.dispatch('cart/checkAllCart',selected )
    }
    // 删除
    const deleteCart = (skuId) => {
      ElMessageBox.confirm(
        '确定删除该商品吗？',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).then(()=>{
        store.dispatch('cart/deleteCart', skuId)
        ElMessage.success('删除成功')
      })
    }
    const batchDeleteCart = (e,isClear)=>{
      ElMessageBox.confirm(
        `确定删除${isClear?'失效':'选择'}商品吗？`,
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).then(()=>{
        store.dispatch('cart/batchDeleteCart',isClear)
        ElMessage.success('删除成功')
      })
    }
     // 修改规格
    const updateCartSku = (oldSkuId, newSku) => {
      store.dispatch('cart/updateCartSku', { oldSkuId, newSku })
    }
    // 结算
    const submit = ()=>{
      if(!store.getters['cart/selectedList'].length){
        ElMessage('请选择商品')
      }
      if(!store.state.user.profile.token){
        ElMessageBox.confirm(
          '需要登录',
          '提示',
          {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning',
          }
        ).then(()=>{
          router.push('/member/checkout')
        })
      }else{
        router.push('/member/checkout')
      }
    }
    return {
      submit,
      ArrowRight,
      isCheckAll,
      itemChecked,
      checkAll,
      deleteCart,
      batchDeleteCart,
      updateCartSku,
      updateCount
    }
  }
}
</script>
<style scoped lang="scss">
.el-breadcrumb {
    color: #666;
    font-weight: normal;
    text-align: center;
    line-height: 70px;
  }

.tc {
  text-align: center;
  .xtx-numbox {
    margin: 0 auto;
    width: 120px;
  }
}
.red {
  color: $priceColor;
}
.green {
  color: $xtxColor
}
.f16 {
  font-size: 16px;
}
.goods {
  display: flex;
  align-items: center;
  img {
    width: 100px;
    height: 100px;
  }
  > div {
    width: 280px;
    font-size: 16px;
    padding-left: 10px;
    .attr {
      font-size: 14px;
      color: #999;
    }
  }
}
.action {
  display: flex;
  background: #fff;
  margin-top: 20px;
  height: 80px;
  align-items: center;
  font-size: 16px;
  justify-content: space-between;
  padding: 0 30px;
  .xtx-checkbox {
    color: #999;
  }
  .batch {
    a {
      margin-left: 20px;
    }
  }
  .red {
    font-size: 18px;
    margin-right: 20px;
    font-weight: bold;
  }
}
.tit {
  color: #666;
  font-size: 16px;
  font-weight: normal;
  line-height: 50px;
}
.xtx-cart-page {
  .cart {
    background: #fff;
    color: #666;
    table {
      border-spacing: 0;
      border-collapse: collapse;
      line-height: 24px;
      th,td{
        padding: 10px;
        border-bottom: 1px solid #f5f5f5;
        &:first-child {
          text-align: left;
          padding-left: 30px;
          color: #999;
        }
      }
      th {
        font-size: 16px;
        font-weight: normal;
        line-height: 50px;
      }
    }
  }
}
</style>